If it

Digi ";;nl Gcm)?u:toI' Laho:cD.·tory

];!2.813a.(~htU!o'(;'i;n InB·:,;:l'!.iir;~o of Tc()hnc.lo&"'Y CamhZ'idgo;; HO .. ^t! seo!luc0..'c"b9

SUBJECT ^~ OFERA'l'IONAL PROCEDURE ON THE WHIRLWIND COMP1JI'EH To ^& Tho Mo.tI18111E':bicG Group

Do.te a Dsoembol" 10" 1951

Abf:rlirnot:: Because of tho ev0l"' .... inol"0aoing numbol" of pTogrmna being op::n.'o.;bod:.;

cbV/i

it haa beon nOCe30s.:~y to ohanp.':e th0 nroceduT(,) o:? ()'lJc~Q:h;_:ng progt'"e~

on thE> COlupu:G0r ⁰ This itl 'bho f!ooond in a Dc:r:lc3 elf t;!Jl~eO ~:r;omCl!:"~.nclUlilfJ

'nhioh oxplo.in tho gonere.l prooodurfJ :1'"01." pllt:-Ging Pl'Ogl"alllO on "t.hr:.~

oomputel"0

In tho past yeax" o~ oOmpl'l"G6Id opol's.tion ^0. greQ:b deal o.f <;'i:::p3l"'ionoo haG boon gained 'i?n.:th regard to tho method of o~ara:ting unO. ·ti,?ouble<>lIshooting progrc.un.s ^c, One of 'hho first things 0 .. pr'ogl"ruIllnal" oPould ~ealiza is 'bhtS1"1:; "t:;h.o proba.bility of a program performing oOl"rao'i;ly dUl"ing i~Gn i'iro"(j opore:bion is very smallo 1'110 roa.oon £01" .'c.ihio is usually duf.:) 'to -bhe nogligence of ·t:iho progi"sruner ^Q In hiG attemp'c to check the uhole pl~og:I::·o.m, hio e:ttentiol1 will mainly b~ dirootsd ~Goi:~"ard hi:) logic and hie nuu1.)l"ioal mc-:;hodo If a.nd ^\lm.ell h.e ohooko for tho poooibility of v .. mis'celco arising from- ~s.r1.OUD 15~t"GIQ) cVO:~:"c:~

sighto,l) f-rom tho copying from tho work ohaot 01" from e misunc101~:YGanding oi~

·bhe e:'4~ot funotion of: 0. comput~r op3X'a-bion, ·the prog:-ru.T1 '7111 hnvG beoomr.:J DO subjec"t;:i..vo to him that o.ny suoh mio ... .;a.kofl will uOUDJ.l;~t 1,)0 u.ndotoc~odo I.n

addi..I~ion to thio obl3taol'3 -hOO OOOUi'&"ence of a mistako iil typing OJ." of E>.

tape equipment m~.lfunc'bion is pooDi bIe!, e.nd Inst (but not loo.c.rt from S01m;

progrrumner 170 poin~ of via't1) ·thol"O io the slight poafJibil:i.~! of ^Q trrulsient l1l9lfuncrbion oocurring during oom.putor operationo Bacau:Jo of the lfltt0l<> i"e is fOl·tuna.te "that Vfhil"lnind laoko "bhe" ht.r.m.S.n property of baing s0nait:l ve to i!Wul ts ⁰ Suopec.."ving the computer of mQl~lrunotiono io in :l t2Jelf nO"G ^'(;0 be frowned upon" B".x'G "'co !loouna i'b of inoorreotly porfol"'ming \'d thou-'I,i ouffioit3nt 0'videnoe in analogouo to aocusing a mirror of rofleo'i:;:lng 0. i'alsa imr;!.ge ⁰ r·t;·

is now the oonfirn:.od opin:lon ⁰ f' those experienced ni i;h oomptrbel<> opa:ro.t~.on

that e.

suooessful pI·ograII!Uar io on~ who quietly accspta notioo of an alD.1'1Il and m.othodi,oe~ly inv0(3"tiigo;t:;es tho informa.tion· producod by th3 a.lru.~o '1^1h(!)o!) ohould. he disoover. a. blundor, 110 io Daved 'blw humility of udve:r-biGing i'c tlu-oughout "bhe labol"o.tory a.t'ld should he eliminate all pOfloibili·t:leo of So

porsono..l mis'bake and produoe conolusive

evidanoo of

·vlher·!> the maohin9 mnl=

funotion did ocotU~~ h$ ic not only an offioient programmor but a

capable troublo-sheotor or ^uhom thoro oannot ba too

manyo

Although i~ U'ould seem that t? programmar ahou.1d double hiG ef£or"iiB in o}-l..ocking his progrClll bafore ita ini·i:;ia.l operation:} this :1.0 :no·t 'boo casoo Trup!) Iw should bo reasonably oonfident

or

i'bs working; bt1.t to 71G.stc ~birr~

'"

Ij,';':":v

ob:.Jcklllg m:;.d 1"()cl;:;ol::~,,~Q3 is aOll::Z~'lJ:.'"ilO \:;l!Dll ono cOi.l9idura i;110 PU}."1!"'DFJ0 02 "(;ho

eom)?u~o!" ^1.1 r"i; \'Ih'1S' buil't; -(jo oOj;"vn!l l:L(Y(' -;;0 bo no::::^o·i1oc.1" H:i:~(jb. ·t;his ~.Yl m5.l:1.d c:o.d w!'bh c\ ff:"~ol" ~mcnr.rG of po.tioncn:J one co.U gi"\TJ tb:,.;) computer 110'(; 0;:.0,,;] '~ho

"Gr~~lJk

or

GolV'iY.1(; l:'i::; :l'.1.'.r'J.:)rioo..l problem bub r~l(3o 'GIla OhOi~O of' -(;r.-oublc'·'::ll~otillg

'i;b!) 8l:·l"OZ'(3 in hie pj;"Og~·t\111o TIO'ilO'.?Ol'":i like "(;110 fOl)D.G!o~!I -;jl\f) J.o."C'tiOi<;" r.rl1ouJ.d bo

'~~Jc:;.;~:i..1.~tio o..nd Ol"gEtn:tZ9do OnJ uhou:td dooido 't'~"hut Cl"l"Oi" diQgr.oi:rG~,G :}.';:iQ. ir:s JJ.8G\.J~;::m"y ol'l.1y o.f"4.;o1" 0. ouffioiont cmolmt o:r' lu-Goll:1gou":.i iuvootiga"~;:I.:~il hc.-::

b~01'1 mudoo

When 'Gha compu-bel- uo.o f-ll'~"b nJl.'.do aw.ilablo to "(;110 c.ppl:toe:hiono gl"oup, oo.oh progt'e.mm.Gr OpOl"edi€ld hio oun progl"emo When alal:'m3 OOO\U'z'ocJ. it was oommon 'bo Gee tho oomputsI' 01 ii id10 fOl'" loxgo pet'iodo or timo \'1hilG 'b11.o

progrl?JnID.91~ doopero;boly triad to guano nlw.t tho u·oubl0 '\70.·30 Uounlly

no

'liould randomly o=~Olllin0 tho contento of como storago reg1.stora or opsra.te

"'~ha comput~r in an nordor-by-ol~dol·n fuohion to trace tho p~th of oon:\jrolo .No·t infrequ.ently 0. ul"'ong button proooed or n [.t1i:Goh fOl"go'bton₉ undo~o ·t;ho

pl"OnOUl"lO of tho moment, rooultod in dost-ruction of tho oymP"GomrJ 1.10 ··;JC\O

. trying to dio.gnoooo 11Jlo tr.:ljority or thooo oituaJ'Giona ondod With tho no::lrti pro gr emma 1· ^:J his pat:toD.CO El:li an end~ dClIl!luding hiD tul"n and "tho wooful ' pro ^co grruumer, still puzzlec.111 roturning to hiD ofi"liooo Surpriflingly enough, hou ...

ovor~ ho wao no-b puzzled too long nftcr 0.. systema.tio study of tho o.ln..-m ini'oI'ID.8.tiono In aome Oo.S00 't7hon "hhroo or foUl" 6UC00fJO:J."V'O ho\.U"o of computt:l!.,>l timo VIora t\vaile.blo" tho pl.·ogl1>~-umel· ''lUS ublo ·~o l·OOp~l·O:t;0 "j;ho progrc!ll,9.

o::omine e. fO'r1 opoo:tfio rog1o'litn:^wo!t m.aka the U900000ry tood:1.fioa:bioDD!) o,nd OUOOGoofully OpOl~ate hiD progrcmn Howowr!) 011 those r.ru.mua.l o:r.runi~.~biolln

and modifioetiono 'boole voluablE> ·i;irn.o o.nd oa.usod muoh unnocoooa.ry s"ta"cdn

on "uhe part

of

tha

progromm.cl"o·

Today" by monno of opaoic.l Pl"'Ogramo (po at mor"bens) ⁵⁾ it io pOBsibl0 to obtai.n printod l-ocorda of the contento of any ooo'bion of storage reg:Lotolo in one of the fivo di.i'foTo.nt £01'"1110 in uhich 0. nord is nol'Dltll1y 'VJl-»itto:p.o I"b 10 0.100 pooaiblo to obto.in aubomaticolly printod

or

^punohsd inf'orID.:\"Gion aOGociatod TIith oa.oh oporation or

m.

th o0x;'(;uin oolootsv. oporat:1onc no thoy orG oxaoutod by tho p;'·Ogl"'ruIlo Aloo ^1} our input oquipmonot; is faot enougb. fOT a. largo number 0

r

pa.ramatGra to bo insortod in a. progl"'cm in ^0. ~JCr:y o}10I*t longth of timoo Thie oan ^b3 oopooio.l1y valua.ble to n progxoo.mm.ol'" ^{'\-1110 110.0} limiting ro..nge tl"'oubloo a.nd ~indo it n9coosary to try a largo numbor. of diffaron·:; valuos boroTo

a.

OUOOOEJcful op31'"ation 5.13 obi:ic.inodo With 0.11 "~hef30

faoilitiac

it should

!lot bo too

dii"'ficult

to

nC"lUil"O ·bh9

nooeooary

erro1;' diagnootio

informationo

Hor10V0r, in9.omuoh 0.0 all thio po·tontic.l infol''lUQ:h:1on tcltoo ⁰⁰⁰¹⁼

puiior time in being procured;> no l"'oquot:rta for ouoh d.v.;be should bD mndo uniiil the progrem has fa.ilod to operate and auffioieD:G time spon'h deoiding 'ilhQ.:li info~tion '\Ji11 bo noododo In ol·dor for tho progI"e.mmor to oomply u1th ouoh a. domand!) th9 computer .Dol'2£ldulo m1!B'(j bo ouoh

that

ho \1111 not bs ltopt tmiting fo?

too

rooult.B or tho errot" dio.gnoa·i;io "taoto To aooom- plish thio and 'ho avoid tio-up0l>

a.t

lenct tln'oa hourly oomputar psriodo,o

oeraratea

by at leeot too hourop uhould be ooltoduled each dayo Thio rnuld

pr~vido the e..bili

ty

to opara:ta or -Gotl"°G 0. program. a.t loo.at fOUl" timOD during e VI'ook and yet no"1; conaumq moro th'2.D. c.' half hour ⁰

r

oomputor timoo

Sinco Vd~ ... "'y 1 :l"C'liIo '(jimo 1J'111 1;::'1 £3p:Dn'~ :LlJ. Oc.oh 0 pOl'~"L\,;jion of ^0. p;."o-

gt'!,'-"::;t~: -Gho pl"ooonco of i:iho prcgrmnmsI!" :Jhould

no'c

bo n()C008C'SY" A re;U11o.l'"

o:I~I::.rr·o:~cl~ ahoulc1 ^1;0 o.bl0 ,to I"LiZJ. .jvho ^prog:,'wl by n:cl"'oJ.y fol10'r:ing '.\ t:!'.~,:,~,:;:;.10 i~l:':li 01' inr;rb!ruo'(jionn ⁰ l'G 11!:ls boon found '\;ho:c mol"O prog:."ttmD can bo 0P3:L"la:{;od dUid.ng n ccmptrcoz¹ p~riod :l.r j:b 10 "'cho :.·ospono1b:tlj:hy o:f: ono or 'Gt:o mOll ~(iO OPOZ'O:C9 all of tho p140 €l'C.nlO ~ l"'e.ther 'bhan if' acoh pro gleill1l.YIl01" opOl'ato'.3 h5.o o-rrilo To ino!'oa~o o£fioic.ncy fUr-'lih3:'''!J :t{; r..ao bD0n :requ..()8'~od ~bha;G no manuo.l oont?ol

or

^'bho progl"C~. bo noooncJm"y in ordor £01"

it

1;0 00 opo!'U'Gad (:i.~Oo

flip ... fJ.op 1:6gist0l~1J cCll"baining p(!.l~am:Zltors, mo.uu.a.l photogl:'cp hyJ) O-'i.iOo)"

Should "hho progl"t:.nmloX- fool 'th3 o.bsoluto neod '~o opol·~d:;o hie own prog~"om~

ho \,:;i11 bo o~lowod.? OD. reqt1i:Jrrl:i!l ona fi:Ni00n l:m:lnuto por:J.od c. wGek". 'It

lU01⁴0 -1;imo io noedod

it

rilll bD gt"ontod t~ough ·tho hoad of -i.;he mat!wn1o.tioo groupo Fol~ progro.nw 'bhat haV0 boon tOtJ'i;od (l.ud zOGqu5~r'o long periodtl of' OP31'a.tion J.;o produco su.rfioie~:lt do.'~(?~, en civon1ug (Johodulo,:) uhioh co.n bo

~vo.l:'iod dopondiug on 'bha numb::J::~'" of p?'''og:'l.''o..'Uo p.ild "bhe e.moun:G of date.,9 t:ill be t\VCoila.bloo

Tho l\c"but'.l mo ohani 0;:: of." oporo;t;ing 0. progl"C'..m on '~jho cOmputol⁴ l~0cz>

quiI."'oO ^.iGUo l"'oquioi i-;ion forms ⁰ Tho fir01; l"OqUOS'(;S tho pl"oper(l.-Gion of tho

FlOl"'.oY.'l"i·co~ \;o.pa and 'bho s~cond,:) tho o.c·(ju.al Op(;)l'oo.:biollo Should (~n o.le.nn ooct1r in tho 0p3T'o .. tion of tho Pl"ogl"'o.m 'GhOi;O is (.\ ~\ihil~d requio:1t~.on :'rh-i oh

l~aquoo"iio em crl."' 01' dlag.noo-G:i.o {;oot of tho Opsl"'f.yGiono (Soo M= 13fil) Tho 'beplZlo oi.' m!:~in p1;~of9."omo 'l.-7:tll ba numbored tloil1g n oc\.pi tt:.l ~~

ao tho prolix Po.Ild o.ny ioodifion:iiionfl ,\1il1 bo indica"cod by i'bo f11:.0 numbo:i::"~

pl'Oooodod by tl dash ( ... ) 0 For o:::rcmp10:t 'Gape nUlIlbo:r:" 0:1.::: hundi'ed cmd fi.t"l.bo\~'n modifiocdiion oi:-..t would 1:0 \v?i~tQn U!J T 615 ^c;» 60 All pC.lncmeJ~er te.p~ num=

bero ,\1i11 hD.;~},o a oo.pi'bal P an a pror~.xo Tho file numboI~ uill corr0ol'ond to tho mnin progz'omvo filo nu.mb:31" and tho e..o'cuul p!lrrun~rbOi." numbor \7111

roll~l e. du,aho For e==~Plploj) "tho sooond :Jo~v of i?al"'e.m~:l'\;or,(' :n :;:'1: e 1'l.Lui~1jer

615 'could bo P 615 .,,' 2"0 Th91-oi'oro if' 011,3 'l1ished "ho oporo:bo to.po oi:rr: hundl.~ed and fif'boon modi.f-loa:b:Lon nix togo-'Ghor wi'bh 'bha socond aot or po.re.rnS"i;0TS!>, tho o.sosmblod tapa 'Would ol)naio"c

or

^l,f 615 ^u. 6 o.nd :P 615 "" 20 lioto 'bh.lt'!.t eo.

parw'1letor numbor diotinguiohsD between CG'·co of' pru:-emctol"u in ^0. given filo,9 not oo"bo of po.rarr..etez~s o.sl3ooicd;ocl 'flith a. aingle modif'icu:biol1c,

A ^t'2pnraJ.l1$te:r^t' io dof'inad 0.0 v_ oot Ol:" Hclu"bchf7 of valuooo ~~ho tOl~ olutoh '10 uood to omphao5.zo ~Gh0 fa.o·:'; that 0.11 tho valueo of on0 ptll"o..- m'Go::, are :l'ead in on one movomonti of tho pho'booleotric'r'olldol-"C clu:boho

T~(J pl"ooodure 't1l\e doo:1dod on ill order to nid -i.;hG oporetol' in dio"tingu·!l.ohing

par~'Uotors Be they ara rend ino Also,9 i'G has boen dooided

-co

^{l-Oquost l'i~C=}

gro.mmel"'s not to roe.d in not:" soto of po.ram'Zltol'>S by tl"o.noforring oontrol 'ho

~, Pllra.1l1eter 'bepo!3

mll co

filod aepa.l"e:bely!)u.nd in 5-5 .... 6 fOTm ,71.11 bo dil~'"

"~inguiohsd £rom regular tnlj0 ut!i11bor's by 0. double 810.0h bo"Gt100n ths main numbar end po..:t-omo'tm.· nurabo:\" ⁰

:1.000 l!'6~1 pl.". p5~ !j')l, V6 t:: T615 - 6 p3, pt, p"3; p'~015.s p2 ~, P615 ". 2

p,31 \'Ji11 oause I!.\ l3illglo sle.oh in thD 5"",5..,.6 tape numbal"(~

v~lTI:F'1?J 't'rill oo.uoe a. doublo elaah in '1.;h9 5 ... 5 ... 6 ta.pa numboro , ?loa3

-(jhc; i:~p.utj p:r'(}gJ."'~.m,(J At '\;110 rrr0.30!.J; '(-;51110 ':;h~,G Pj;'o.G\;:J.CO io r..n:1DCOIJt;-J.bl0 to

·(;1;'c.nt:ion'l; e~'ror:J j.n 'bJ2,t:: l"OD.d o;,Jsrclotiou" Tharef"o:t:o!) Yil!ml i~'.· Pl'Og-ltJ.Tjl :~.G roc.dy

:~-',,!,' :Hi13 no:d:; ncrt; of Pt'.l'>runOt0~;'tJ '\.i1:0 p: ... ·ogl·c.m ohould (;-1.;op :'l.'ld u)_l(,.~'1 ';~~'/j q??::n."[;'.CI

·(~:,:,t., <:'0 :r:'nc"d :Lu 'cha !?Qj~[!moJl:oI' 0 l'h:tn g:::"uo'i;ioo ~:]S.11 J:lO'C only ('.DOU!',) .;.:;><~ pro"'"

G~"'£I"!lililOl." of go'b'tiin[; hiD part',mct::ll." :i.i.l'bo C3'G01"C.gb oO!'l'o(r~ly lJT),:G ",7111 :~'.vo:1.d.

oonfuoing 'bb,o ()pOr0:~or l"'oge:::-di:ng t1hioh pnro.tll0tor~ ha:tTC! boun road ino Thin is o. very 'i:iempol"'(3J,"'Y oi tUc,L(;lOn 'J.nd progl"'!:.urunoTfJ '0111. bo informed ,(,lhon :L'b he,D oDon cOl.~l·eo-todo

'r:b..o pClrfol~nnoo requost f'Oi:"m (DL .., 324) io 'bo b~ tL.')Od3D..oh 'ti~.r:lCl thoro huo boon a ormng.o in '(;110 mo.in prog}:C'J.n or '(;11,9 pOorO,lU8tm:"oo Tho form io divided in"Go tl~'O aoc'bionos -tiho fj.l·st Doing J(jlw I'oquioi'l.;:lon i'ccoli'l (J.lld

. -tiho second 'cho indiorrh:Lon of uhe.t ho.ppenodo In, f':lll:1.ng OU'G t;ho :.·oqu.io~:~ion

!H30'bion,9 one nIltS't; indiuo:{;0 .!cho f·ollC'~1:blg l~

0.)

Tho kind

or

'cupo to bo U~H)clo

13000.'1.100 or tho i.\loroo.~o in o'bor::lgo ospllci'i;:r ('~nd tIy) udd2:(j:1.on of magnetio ta.pe iJG Doon ~,,7ill b0 poaoibla "~O ~ot\d in l~o:.;:o .. ., writoi" otnnde.rd

·co.po"

oOl).V'ol"'i; i'e!! (\nd opsl"n:co '{;11:o 'Pl"OC;1-~

~1n:m0diatoJ.y ⁰ Ronco '~h9 11800D:Ji'GY of' Im.m,1:1llg '\.;110'(;1101:' 'G11~

tD.PO ia :ttl 5 ... 5· ... 6 or F'lozO\7ri'cor £01%10

b) Tho kind of) oU'tipu-t; oCluipmont and '07ho'bh0;~ i'~; is nutomo.:;;1.oal1y

OlOt

mC'Jlue.l1y oontrol1od^o ('lP 200

(0»)

Tll0!o(-J e10~in01;r.UO'bi0110 TIhich -:;,111 P!'illt qp 1.28 (d) ^j r:mu.· .. ch (qp 106~ ~) 9 ciond pbotogr8c'il (qB 0) t1.utomo:Gi^c}C' .. llyo If ·Ch~3 ,qp - c ..

outpv:b in o.u't;om.a;bictho o'~he:t~ equipmo~:l'c elm bo lorG on 'I':d'bh no ,of'i'oc'lio Va'hh manuel oont:rol thZl O·t.hOT oqu:lpm$n~; hor; '{;O l:lu '\;ul"nod of£ 0

0) Tho t1.me ClOnOUmDr.l by "boo progTDlll boi?oro

0.uy o:e

"'cho output:;

oquil:JTI1orrb l"ovpondo ⁰

In ordor for the OPOI,'o,'GOI' to avoid oOllf'uai1.3g e. Iongtlw com··

puta;Ciion "i"n:bh a. olosed loop!} It~ noods to lC110W o.PPi.·o:tim~tol~i h017 long tho compt\tation ohoulc:l la.oto

d) .Tho total ·l:iimo oOnDUllJ!Jd by ~;ho pTogl"cn £l"Olll -'GIlD momen"i:; :1:('; ifJ

roud ~.n tmtil ^:i.t 10 Q.u·~omBi.iio!.111y Ol' 1.lW.nuc.l1y r:rboppodo

Thir.; infcrmat7 .. on is n00doc1 :tn ordor fOl'" tho opore.·bo~· ·~o 00..1,,,,, . oulC"..to o.ppro::lmo:boly hC1C'J m:lny progI'V.Dm h~ ~i 11 b0 a.blo ':;0

oporc.to 9 CUld e.l0 0 t;o d0toi.:"nlino. if oomotliLng in \'n'"ong ui'~!ih LGh~ program should i:1.; oonJ~inuo 'GO !'u.n o":]ortho eotimn't;od iimo by f:J. £o.:lr m.arg:lno

e) The OlllOltYl"C of ou'iipu'~ ⁰

The opera,tor. muo';i Imm;l how l11lloh do:cn ia

to

be 0 bta.inedo Pr.o ...

gT~mo huvo boon knotiil 'GO orr in suoh 0. "GD.y tha:b J.:;hs outpu-b oquipment io con7JtClntly boing Don'\; 110ll00noo 0 Aloo.? ,'{jho pl"'Ogl"anl 'f1~y b~) aot ';;0 'bu.t·n ou'h tl g!)0C'.'t; amOt'jllt ':If do:b!.l bu-'G 'iihr) p?ogrcllmn-ol1)

8('545

S~~i~m\n" a,nau!;]. 11,,··1 ;)50

.-:,)

.~

g)

-:tl'Jly dOll:L;'o o:~t:Ly 8. :~\'·iJ.!r~;iOi~ of) '~;hi~\ J~o dot(-.i'mino ·':JhQ-;:;~1;)Y' ~{jh::.J progt-"ClJl :i.n ()rJok"c.'·~i7.1,g COX'i'GC-;'jl::lo

::£1

^-{;h:;; }?t"Dg::'CDl O;=C8'.)ci.:,; '~h'J

affitjt1Jl:b at dn:~.r.'.. pl'odioi~oc1SI t.~tO Pl"'OU):'C1l1 l::ill 'be s,\;0PP;;1d 1:1~::m.:1:tl:V'o

If till::: p.:cogrG!!l ·did porform t\'):;'r0crl;ly:; t:hon dio p~'{J ;~7:'~:~1~. :·:'i::.~r 1.>::

oporc.tod :lll c,:n o";]olllng p();{'iOt~. 1'01 .. · ^0.Q lC!lg a '::;:L'1l0 r-.G :.I. t.:: )!r;odcdo In -tihia \7ay 'cns 1~ndli1:J.g of t'~·":.lg3;-r.2il~\ llI.tdQ::' {; (\.~I·~i CC\U be ')::p:3di'Gor}o

~rh0 .~;yp:J of: s'co::,"uge .. ~O 1:0 uU(:Hlo

Thol.-'o eJ;'O 'lih~'co avuilo.bJ.() BO'bs of S'hOi.."Lgcc) Tho ,~il"gt h,fMJ 0.

oap~.oi·l:;y of 'C"(;f;o hundl"Ocl and :t'i:ft;yc!'ni::~ 'r:)gis'~ol"'El (·\0 ... ~l.s7 (0) ~

32 .... ·2;] 7 (d) ) and is rc£'orz'cd to ns Eu:il:. A, l~egu~\e.ro . ThirJ is not 'GO bo usod in (l.n~r not] pzoog!·o.ms" Tho fJ0COnl~ hao a. o~lpn=

oity of 320 rogistOi."i3 0..1.0 ·".6S^r{ (0);> 96 .- 'll5 (d) ) c.na. in

l'Of01.~l"'cd ·~o v.o Btn~1c A, e:~lirt\., Th:i.!} 13 tot.o ua0.d \1.1 cJ.l ct.:~rJ0C

nhsl"o 320 l:'0gio,.'liers fJ.l"O auf£~io:tel:r\io Tho ·;:;h.:.rd ^{hO.D .,} cr~p?oi·~y

of 0110 thousand 'l.T~"Gnty ... i\~tu!· J:"egi[Jt~)ro' (-iO .~, 20a7( 0) 1> ~):~.

l056(d) ) ~ c.nd Ie r0f'0rrod 'GO, as Dank

no

^'I'1ti.o ie avaL': 'lbl~31

only unoffioielly bUG may be U·90d Tlh0nevOt' jU~l'O '::;hun i);\O l"agil:rbo,,"s ClrO noco30m-OY<J B~.k B in qu5.:i:;~J 1;'>(..') io'blo und v-.:..]~.

bo off:tcio.l1y a part of Vfn1.rltrlnd by tho f:tl.~t;:~; 0 i' the y0a~~

(1952) 0 Progro..."!![; Tf!"i'(jt0n ilor B~ A CR1.1 end 'la: 11 ba 0P-C,1."c\;od :tn 1;3o.ok D 'rJhCll ~"ve:!.lo.blc ~ bui:; thnfH3 d0r371.g,no;bod l'C Bank B Tdll only bo por.."£ol"l1IZlc1 \7MU -l;lle full Buuk B 'In c.vllilf:.tl ^t;)"

Tho pru."(:'mot~ro ';7Jhich ure

'co ro

uDod liDtod in "\;ho il.:(iice:r;od plo.ao -rn,th the !!pprop:rio.tc ono of 'tho' :t'our poanibl.o iJ,""r'Grt~o ... -.

.tCi('J~HJ c;,l"'oJ.ad n~::h

'rtO

(:)0.01:\(> Tho r':cmr PODl3ib:1.1ities a\'~)~:

,

1) To h9 r'(;lo.d in b0~Ol·O opera"ting 't:hs mc:.i}:l }?:;;"Of7"eJllo

U.\\

~)o

o-:;op a.ftor Z'oa.d.,..:1n

or

mc.ill progl'mil and ~0c.d¢'·in th()

p~.rc\mtrbol" b9i~c.l·e opcl~C\.ting --... or stop afl'(;0l~ !'o(v::l ... in of '~;h0 pl~oceding pnrcm~;fcol'" end 1'00.d 'tihie pat~Clm:3t0~>

ill. b~roro operfxh:tllf,o)

2) 'l'o 1)e l·ae.d in only if no n11"\1."h\ O(ICtU·S. in proood:1l1g opora:{;iono (io 00 okip thio pe.Tamo·bG~ ahollld au alal.~m

ooour' b9101:'o

it

io road ino)

3) To be l"oad il1 only if O,lC'.l'lm, OCCUZ"G in pro coding

oporationo (i~oo

nktp

tl1is parrum9t~~ unleoc un ala~

oocm,I-a in preoeding Op'Ztrc.t~onoo)

.. :!)

To be i."so.d in 17h~rbhor or not ala...~ occ\:rrad in pl-oceding opo~ation~ (io 00 . tl"Y thio parnmct0l;"l no Iltat"tar wllo;ti lmppono in. prooeding OpeI"lhtiono ^{0 )}

Lot UD c.oattmo tha:h roy progi"~'1m i s ~~p () numb01^ro is T,~:64"'5 and ! have

oovan pal'"rune't;oZ"s -co b'eJ tl"iedo Lei.; uo rUl~bher £letJumo ^.IGhat "'cha :Cil"S't ty~v t'.?9

to bo read in beforo opeTating the main progrmn;3 'chID ftif-'Gh ·ttnd sixth to bo

·br~od (13oparc.i?oly) only if no c.lo.~m oooura in "(;1:.0 procoding opora:iiiono,9 thSit;

th~ third io ~\ paramc:rhoI" t'Jhioh proviclso useful informa.tion v:tn oom.e Ot.'l.:cput;

G3·15

Ei0mce ~.iJ_duu

n ...

^·1S50 Fogo 13

ou tJlw,;i; mig1rt'i 11.:.\70 OO(.r~):·l"'Qd -(;~) n. fo':-: :rogio\;Gl"o in ·i.;ho Gvo1.1'b of e.n c~l2.rm51

tll...1:ti '1;ho fC,ut..'lih in e.. p.J.l"mm;.d~Gl"l ':~:hioli rosotn ::~ny 1'0081 h1e ()h.nngos :In '~ho

r,:';··(J:~~::C:ln. cnd 'Goot the 13 G'Von:bh i~ a IJurm:n.etor ~1hioh -crios CI. riw.:11 ~~ 7/~; .::/r

· ... ~J.~,:.!;Ug which. at'o uaod to torre 'bhc :a.~ang;, limii:tj of -'Gila p:COgl·CJ!lo '!.';'i,(.'

D~\l·t\1nD·GClo no'~up ·.;;ouJ.d o.ppec,r ^C:.G:;

P ^4S{~ = 1

Q)2 ;;

4:

n 464

..,

Q)2 3 4~

..

^r.,

P "1:5 /1 ^{<D .0 t-}

'~~' i '2' ~ :

p _~64~ ^{I n} ₆

P 46'.1 "" 3 1 2@4 P 464

"

^{.J: 1 2 S@}

P ^4.-6t;l;

....

^"{ _{(1)2 3 Ll}

Whon -l:;ho o poj."(!d;o I' Jr{;)OClivoo ·t;h-;,) pOl"'fol"m~.nco r0qu.i8ition~ h~ \7ill ohock tho £o:::.~m f~)r' complo'''a;enonn Q11d thoD. aOGcmbl0 "(;ho mc~in tapo c~d i'bo

p~sam.o·t:I:irl3o If' "i:iho!'o ::\1."0 o:ny qU6stiono,? the prograrrmor w1.1l bo oall,ZlG upon to onawor thmn bofore 'l;ho pl"ogl"em if; opore:i;oc1oi'..r~~j:' the opol'-a.tion oi^D '(;110

program!) U oopy of tho compl,)"~od fo:nn c~nd QJly ll'0fJtU:GG ".Jill bo 1"0t~U· .. .t1od '~;:f)

tho prograTh'Ul\;)l" etlong with the assembled ~:;E.\pC.:l Should tho Pl"Ogt"C.l1U1!9:''' bJ douhtful c.bou:G what W-Q.3 retld iu!) 1:0 \7il1 hn"iro \ihe oppoJ:"'/ju!l.1:~y tiO ohock abha -to..po ~rl·~hcu·t going to tho "~5).p9 filoD ⁰ IC -Giw G.30Gmblod -i;apo :10 lJ.O long~r nsodou!) '~ho pl"ogrrunm:.)l..~ may d0(r~1'oy i'i;o TIoW(~V01<t ~ if 110 \1icJhoD j;ii

fil<!)d. in ^-\';110 tQ.}?O room.,) i·:; must bo Ooooignod c. !lO':~' tape nUlIlbD;t'Q Thio 13i-l;u.o..",,·

"bion :nm.y o.riao :if c. p!'ogro.m und a. oor'cei:n Ho't; of pm~cru('d;ei"'o o.ro "(;0 ho usod

'i/0it'~.r oil.tono If any ~oo0mb18d to.pn io ,.I~o bo modified in ';;11a lol.'taj;(j "(iO,y~ ":';'1':.0

'1.:71'1010 tapo ^1Ul1J3t bo r0u::locmblod by tho opsrc~:Gol"Oo 1l..!:chough 'chiD mo.Jr ::loom rw.otofu.l!J it will L\vo:i.cl confus1ol'lo If "1:;ho uBoembly ia to bo roop0l"a:i:;od t.'.ge.Ul,? ·bhe pl"ogx-e..rmnel'" rooy ro1an.~1l tho aCG&''J'illbly tn:ell n ll0W l"oquio:i:bioZl fot"-l.!1 in order ^{'lio Ot;1Vi;)} unnGooooo.l7 duplice:liion t1.meo If a. prog:·urtnl1ol' dooideo that his samp10 datll in co:t'l"ec~:; end WU!o.:GD to obtain t\ oomplote aot of da'!~o..9

h9 't1l11 indica"bo this in th0 tVe,oD1ments" seotion of hio l1G\7 z'>equisi tion fOl'lnl

and inOlUdeD if poooiblo, a oopy of tho sample datuo

.!J' .. <?gzarun

Pe!£O~l~$ S~~

I ^C) A) Fez" t:b..e i'lrEr\i

run

^{of' 8. new} l?l"'ogl"em,9 £l modified progrem or il progr.am tJith no~ poramcJters₃ fill ouac in dupl:1c~.te 0. Progra~ Peri'oralf:1.noo Requaaⁱⁱ;.9

DI .. m>32~!:.9 uri"bing iih0 ri10~ or tape, nt'.mbeT ill th0 upper' lof-tJ) yom~ ne.mo~

problGTIl l1u.mbor;) (roque!J'~ numbol? ~1ill be i'ilJ.ad in by ope:ro;\:jor):J tha typo of ta.pa to bo used£,

tr..0

'~9 oil output whiah 'tn.l! b:;) automatioally oalled into pla.y by -hlw progrrun,$ the mnouvx of eOooh OU1;llUt oxp0ctod or desiTod,p 'hho 8'coTG.ge l~egistal'B usod (Bank A if no morc tho.n rogist0l"S. 96 to 415 d.eoimal r:z

140 to 637 oote.l!) Ballk B o"'G1wr~it30).? end Iv.erlilY,1) lis·G in prop0T order 'bOO numbora of tho val^lOiouo ootiS of parOln.9te~:"o9 if falY's to bo used and oirole for

each the

nppropri~c9

one of the four indioated

poaoihilitieso

Gi"irlG

l·l~~:no::·o,no.ul'il

j\l···:umn

PtJ.go 'l

If C\ p2·cg:o.~Cl.'inr:l{)r '!,:;·J.nnoo_J, h~ l.l:~.y OpD1.·D."~G Xl:LO 0":.i']1 pI"O~rl".~s\ 0-:1:; ill.UO'~i

!?::;'J0iY~ "bhO '(;:!..m~ Cl.csigcnd C • .110. IlltuY\:; nO'b 'Ga!;:'j 1011g0~;· -iihD.:'1. 15 1illi:lE'::-::'r: '~;,~ .. ::)3:O'l1';j

Ll;~oo:i.D.l a.l'TUl1.gCTUI.;)iJ.{; 0

F'Ol"forrtlC\.noo HOCl11.0c't;13 rJlf.)"Y be oub1.5:t;'t:oa 1:Dforo 'Gh:) noeded ':';::\DO:::

h~l'\l"1) boon oomnlo'r.;01y n:"~o1')a~~*cd.c The prclgrrun '1.;;111 g0n01·o.lJ.~· b~) pnr'i'lOi:mod_D

iJ? poooiolo(j:ln ~1o f'.!':Nlt ow ~(~cond aooignod cC:::1l.m:bol" po:. .. :tod £o11o'~r:h10 I"coo:l.P"(j of' roquorJ'iJ nnd complo-::;1.on 01 tap30

B) J.ib:c O:i,·l'Ol" dingnooio da.tf.!, (poo\i moI'-i~OUl or o"l;h,ri:!'\-;ico) on pros!:'o..mD . "Ghioh havo ilcdlod, i')i1:~ out -tl:.~ EHRDR DrAGI~OSIS TEST REQtJES'l' fOI'Ill lJT..t"",329_D

'cr)

bo t):vaile.blo nud dO:Jcri bod noono

c)

For rom.l1'~ l~lUl3 of i'orm0.l.!00 Roqtl0f.r;~ form. 1]L·",32¹1 rODul^JGo m'o Q,j!poot.ad 00 1jhe"G if dosired by '1;110 opori.:'.to:,· \)

f.!.ny cc .. S 0 0

0. "ijoo1jed progrt.IlJ'. fill out ';;ho P.;fofJ.."cr,l :?o~"·~

(J.a 1.n A) but iudice:lio tUldc·:,- (J01JEIEl~TS 'i;;ho:~

'1.;ho Ill"ogrEJn CEl.t'l bo :Jc~l(;)dulod for 2. Dj.gh';; l·U1!

RDGul to obo1.tld be (~v~;).:I.l0.bl·3 i;li'bh:tn (,1 day in

I I ⁰ Tho original copy o:? '~ho P:OOgl·t'.!lL Pt31"i"ormr..r.wo R0q't'L08'~ -J1:tl1 'bs

!'O·t;U1"l10d "liO ::lOU (~S Doon flO 'Gh,~ p:r'ogrr~m has b~$ll PO)';~~;Olr.![:3d!) "G og::rt;ht~l~ r;I~:Gh t'Jl~l printed or ptt::lcnod l"'9 st11'\:;iJ ^CI IL"'..di0Ettion of (\'(lY l'")cdlv;;:-zl ill the pl'>Ogl:·~~l":l~)

,{ll'ch ouch pClSmnCy;';o:l' 1 i'Jii()U, oopt'.r~~~01y;~ io r:;l"(J'Oll ''::U tho flC':t.llh PJ.1Y pl2Crt;ott' gf.'s.phs 'rJill bo dol~.vol"od ·~o ~r(:.'u iUl ';';00 .fm:m of frl;~ .. :tp~J 0:( 35 mill. llo[p.\;i·v,,:,~o

on tho day f'o1101j"ing JG!:lO prow."cJil ~ a po,t".tormc.t\00 and CJ2Y pl:"into mo:y 03 reqTJ.(;}(l.."l.isd th:)no (S00 Tj~.1333) 0

JTG:a9

At tache(l : D1= 14:3, .... 3 DIr-32¹.1-

Rtle Problem/l

[utJior P.fOjeetl

n - __ ^{A.-_ _} ?.,.,

Beetaat

--~hD--ur-·---.~~~ta~---

. Needed

by-~---=-"o:---

_{haar date}

....

Fils

II

---~

10

Program # ________________ ...

^~

Parameter.

fl·

---~---~

Fill in Title, Author, and File

Ii;

indicate when the

tapEr

must· be ready '"forl'use;: fill out a' .

separate requisition for each modification of the

program

and for each-new'-parameter; check the applicable line in

items

1,

2,3,

and

4;

till in items,

and/or 6

i.f desired; f i l l in the

desired

program or

parameters

on

this' sheet

or on

a suitable

fo-rm

(a) . securely· attached

to

this

r~quisi

tion.

2. This is a complete pro gram (or parameter.)

^0.

3.

6.

·Attach to

---

Octal addresses are' used

throughout.

Decimal

addresses· are

··.U8ed"1;brou~aut.o

iypeand'bave converteci. to' conventional.

.

^5-~-6

^formo

Type in conventional. form but do not

convert to 5-5-6 ^form

Prepare direct.l.y ill

,-$-6

form (no more

.~·4·registers-may:··beinvolved) 0

Type' in SUBROUTINE

form.

. .

·File in SUBROUTINE LibraI7~' . LSR

/I ----

Control·-transterred to

reg.

after

read

in.

v 'address of zero - - - - .. temporary

register

'VX address of

1st

order'

of interpre~~ routine

vx2" -.,' ....

···separation.;constant . revxl ----·address of

l.st nmltiple

length constant of'

multilengtb. print rout:ineo

Make obsOlBte all previous programs (or parametera

2

.as tlifi case maybe) iii thiS rile except

-those cirelech'.:O 1 2

3 h $ 6 " 7" 8 9 ie' ll.·

lao .1).

'lh 15

Hake

obsolete

·File

#(s) . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

address cOntents

address contents'

address contents

...

WW1 PROGRAM PERFORMANCE REQUEST, Room. 221 ... : ______ _ R~~~~-. ~"~~~,~--~~~

~J.le :n= f:iubmJ.tied

6y

1'r66Ie~

, , reM dFiIMh6e

^geque~t

# ..

:D ^Short

^l{un.

L

OLong Ru:a

.5

Input

0-5-6

tape only t::flexo tape only

-r:l>-5-6

^{an~ flexo}

Output

c::Jprinter t:::Jpuneh

~oope & camera

~gnetio tape

r.::J-_ _ _ _

I f the expected total time for the operation of the main program and

au,

Parrumeters is more than ten minutesDthe~ogram Bhoul~ be'listed aa,~

long runo .' {b;l The regular operator

The . program. is to be' operatedbYi::l '. . ' . ,

a.t

Number

~ ______ ^~approved

by ______ __

system The programmer) Deed riot

1. .

^Be'

^pr~~ent

^{. during}

and '

J

^~ust.

J

the operatl.ono

Should there be any questionsooClMIT phone

#. ... __

home _ _ _ _ The output equipin.ent is expected to, 'start operating within

______ seconds after the start of the progr~·

The' program is expected to run, 'for ' . mino total and' print , "lines" punch . ' _inohes~ .. phot6graph frames , record blockS on magnetic tape~ read blocks on .. magnetic tape ^{0 ' . " '}

The

prOgrmmShould~toP.

automatically Oy'r

, ' e stopped'manuallyo

I f the program runa or more "than 'minutes or _______ _

it

should be stopped manuallyo

The following is the list and sequence' of It-apes to be operatedo

E~ch lille is to be a separate operation of main progra.m~para.m.eters and interpretive routine,o'

SEqUENCE COMMENT

3_{0 .,'}

----

50

SPECIAL INSTRUCTIONSg

DL-32~'